CONJUNTO DE VALVULA DE ANEL PARA BOMBA DE FLUIDO E BOMBA DE FLUIDO

摘要

There is disclosed a valve assembly and a reciprocating type fluid pump having a piston cylinder (10) and a cylinder head (12) together which define a fluid chamber. A first ring valve (30) having a seal surface on one side is disposed within the fluid chamber adjacent to the cylinder head (12) to close at least one fluid intake passage. A bias means (32, 34) is provided for urging the first ring valve (30) against the seat on the head (12) by abutting the ring valve (30) on the side opposite from the seal surface, and the bias means (32, 34) includes a peripheral region (32) which is connected to the fluid pump and retains the first ring valve (30) between the cylinder head (12) and the bias means.